* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

ul,
ol,
li {
  list-style: none;
}

a {
  text-decoration: none;
  color: black;
}

/* img{display: block;} */
body {
  background-color: #a4c5c7;
  width: 1200px;
  margin: 0 auto;
}

body ul {
  list-style: none;
}

body a {
  color: black;
  text-decoration: none;
}

body header {
  width: 1200px;
  height: 110px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

body header img {
  width: 150px;
  height: 45px;
  margin-top: 60px;
  font-size: 0px;
}

body nav {
  height: 76px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: -webkit-sticky;
  position: sticky;
  top: -1px;
  left: 0;
  z-index: 2000;
  background-color: #a4c5c7;
  -ms-flex-pack: distribute;
  justify-content: space-around;
}

body nav .nav-logo {
  display: none;
  height: 76px;
  margin-top: 20px;
}

body nav .nav-logo img {
  width: 120px;
  height: 36px;
}

body nav ul {
  width: 848px;
  height: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: distribute;
  justify-content: space-around;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  margin: 0;
}

body nav ul li {
  padding-bottom: 10px;
}

body nav ul li:hover {
  border-bottom: 2px solid #000;
}

body nav ul li:hover a {
  font-weight: 600;
}

body nav .search {
  width: 165px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: distribute;
  justify-content: space-around;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

body nav .search a {
  display: inline-block;
  width: 33.33%;
  text-align: center;
}

body nav .search a img {
  width: 20px;
}

/* body nav .search .last img {
    margin-top: 20px;
  }
   */
body nav .search .last span {
  font-size: 13px;
}

/* body main {
    height: 4264.88px;
    width: 1200px;
    position: relative;
    background-color: white;
} */





/* 底部 */
body footer {
  height: 618.2px;
  width: 1200px;
}

body footer h3 {
  text-align: center;
  font-size: 28px;
  color: white;
  font-weight: normal;
}

body footer .serviceList {
  width: 1100px;
  height: 161px;
  margin: 50px auto 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: distribute;
  justify-content: space-around;
  text-align: center;
  padding: 0;
  border-bottom: 1px solid #fff;
}

body footer .serviceList li {
  width: 25%;
}

body footer .serviceList li img {
  width: 80px;
  height: 80px;
}

body footer .serviceList li p {
  font-size: 16px;
  color: white;
  margin: 20px 0 10px;
}

body footer .b_left {
  width: 1100px;
  height: 164.2px;
  margin: 50px auto;
  text-align: left;
}

body footer .b_left ul {
  width: 1100px;
  height: 164.2px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding: 0;
  -webkit-box-pack: space-evenly;
  -ms-flex-pack: space-evenly;
  justify-content: space-evenly;
}

body footer .b_left ul li {
  width: 96.4px;
  font-size: 13px;
  color: #fff;
}

body footer .b_left ul li dt {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

body footer .b_left ul li dd {
  line-height: 26px;
  margin: 0;
  height: 26px;
}

body footer .b_left ul li dd img {
  vertical-align: middle;
  width: 26px;
  height: 26px;
}

body footer .bottomBg {
  width: 1200px;
  height: 110px;
  margin-top: 60px;
  padding-top: 20px;
}

body footer .bottomBg p {
  text-align: center;
  font-size: 13px;
}

body footer .bottomBg p img {
  width: 26px;
  height: 31px;
  position: relative;
  top: 10px;
}

body .toTop {
  display: block;
  position: fixed;
  width: 50px;
  height: 50px;
  z-index: 2000;
  bottom: 30px;
  right: 30px;
  border: 1px solid #cccccc;
  border-radius: 50%;
}

body .toTop img {
  width: 100%;
  height: 100%;
}